Geologist, Martin Pepper, and biologist, Liz Bonnin, explore North America to find evidence of the most powerful geological events the Earth has ever seen  Ice Ages. Finding out how they have both carved the land and moulded life.

Geologist, Martin Pepper, and biologist, Liz Bonnin, travel to the iconic Rocky Mountains, to reveal the extraordinary link between the Rockies' soaring peaks and the uranium that ended up in Little Boy', the atomic bomb detonated over the Japanese city

Biologist Liz Bonnin and Geologist Martin Pepper investigate the world's most dangerous volcano Mount Vesuvius only to discover that the three million people of Naples live in the shadow of another, much more deadly super volcano, called Campi Flegrei, w